[lustre-discuss] Mixing server OS versions

[Andreas Dilger]

Lustre doesn't really care about the OS version w.r.t. Lustre version interop.
Some sites have run ldiskfs MDTs and ZFS OSTs in the past for performance
reasons.  The clients generally do not care about the backing filesystem type,
but we don't test that ourselves.

On Sep 30, 2025, at 14:37, Alex Vodeyko via lustre-discuss <lustre-discuss at lists.lustre.org> wrote:

Hi,

what do you think if I run the same lustre server version=b2_15-next
on rocky8.10 MDSes and rocky9.6 OSSes (unpatched, zfs-only built
successfully). Should this OS mixing be ok?

I'd off course prefer the same versions, but I have to stay on
lustre-2.15 (for 2.12 clients compatibility). And I have to have
ldiskfs-based MDTs.

Thanks,
Alex
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Cheers, Andreas
—
Andreas Dilger
Lustre Principal Architect
Whamcloud/DDN




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